Malicious PDF — malware analysis report

Static analysis result for SHA-256 941cf430d8a0f075…

MALICIOUS

PDF

74.9 KB Created: 2020-11-26 18:29:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 1167e400cfa7a698dc92f79097df24dd SHA-1: 4d3ab169cba7d4135f6132a2d1b46b8afd3ba256 SHA-256: 941cf430d8a0f075addbcc98bcc283c7215abf607c35dd8aab4d27c1c1c4193d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffnew.ru/123?utm_term=ktm+electric+dirt+bike PDF link annotation
    • https://novafexoxola.weebly.com/uploads/1/3/4/4/134400343/kovenazorifabo_xojufored_gizepegiri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393503/normal_5f9a80ee73512.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500674/normal_5fadc4b36fc2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/vcenter_log_insight.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/ironing_sheets_laundry.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/abnormal_psychology_book_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/fabadolukujufulitej.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/joint_defence_agreement_template.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/patterns_of_market_segmentation.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/different_types_of_cells_in_biology.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC88 4440 bytes
SHA-256: 58b004b366cd733d418180fa855625480e48f0714b0625587d2de6957ddae1a7
font_01_sfnt_off0000eb98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB98 11004 bytes
SHA-256: fde266947e582b658818d148f0d44596d8c3818538734ace7f6026bc2910d261
font_02_sfnt_off00011111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11111 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3